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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 417 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  5. 5.🌈 A resistor has the colour bands violet, black, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does white stand for?
  12. 12.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-red (b) brown-violet-brown (c) violet-brown-black (d) violet-brown-brown
  14. 14.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-black (b) red-brown-brown (c) brown-red-black (d) orange-brown-black
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) orange-red-brown (c) red-orange-red (d) orange-red-red
  17. 17.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-yellow (b) blue-violet-orange (c) violet-blue-orange (d) violet-blue-red
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26000 Ω resistor? (a) red-blue-orange (b) red-blue-yellow (c) blue-red-orange (d) red-blue-red
  24. 24.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) orange-red-red (c) red-black-brown (d) red-black-red
  26. 26.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) orange-grey-brown (b) grey-orange-red (c) grey-orange-brown (d) grey-orange-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-yellow (b) white-grey-orange (c) grey-white-orange (d) grey-white-red
  37. 37.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) violet-white-red (b) white-violet-red (c) white-violet-orange (d) white-violet-brown

Answer key

  1. 36000
  2. 4
  3. 79
  4. 5 %
  5. 70
  6. 7200
  7. 93
  8. 5.6
  9. 100
  10. 13000
  11. 9
  12. 560
  13. violet-brown-brown
  14. the one nearest an end
  15. red-brown-black
  16. orange-red-red
  17. 16000
  18. 97
  19. 4.8
  20. 4.6
  21. 70
  22. violet-blue-orange
  23. red-blue-orange
  24. 29
  25. red-black-red
  26. 31000
  27. 26
  28. 1
  29. 33
  30. 2.1
  31. 230
  32. 2100
  33. 98
  34. 7
  35. grey-orange-brown
  36. grey-white-orange
  37. 7800
  38. 530
  39. 29
  40. white-violet-red

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